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Galaxy collisions show new dark matter behaviour

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Abstract:

The Bullet Cluster is the type example of the behaviour of dark matter in a fast galaxy collision: the dark matter haloes of colliding galaxies do not interact but continue on their way, taking the visible galaxies with them, while the hot gases from each galaxy interact. Now data from a galactic merger in Abell 520 suggest that dark matter does not always behave in this way.

Document Type: Research Article

DOI: https://doi.org/10.1111/j.1468-4004.2012.53204_4.x

Publication date: 2012-04-01

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